Hello Dot,

Thank you for your message.

Our sizes are aligned as closely as possible to standard US sizes and since every lingerie company sizes its products slightly differently, which causes minor sizing differences to appear between companies.

We encourage our customers to consult our fitting guide which provides the most accurate sizes for our products, including swimming suits:

http://www.adoreme.com/size-guide

Also, the cut of every particular style and the materials used, can slightly influence the fit.

Let us know if you have any further questions.

Best,
Adore Me
help@adoreme.com